Home / 15,376.60-21,212.58-9,718.48

Finding the Fourth Proportional to 15,376.60, 21,212.58 and 9,718.48

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Solution

The fourth proportional to 15,376.60, 21,212.58 and 9,718.48 is: 13,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.60 : 21,212.58 = 9,718.48 : x
  2. Step 2: Convert to fraction form
    15,376.60/21,212.58 = 9,718.48/x
  3. Step 3: Cross multiply
    15,376.60x = 21,212.58 × 9,718.48
  4. Step 4: Simplify right side
    15,376.60x = 206,154,034.48
  5. Step 5: Solve for x
    x = 206,154,034.48/15,376.60
  6. Step 6: Final answer
    x = 13,407.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.